
class Init{
    int a;
    public void prin(){
        System.out.println();
    }
    class Init2{
        int a = 10;
        public void A(){
            Init.this.a = 100;

        }

    }
}


public class Text1 {
    public static void main(String[] args) {
    Init.Init2 init = new Init().new Init2();

    }
}
